Meaning

• To mark out and make known; to point out; to indicate; to show; to distinguish by marks or description

  "to designate the boundaries of a country"

• To call by a distinctive title; to name.

• To indicate or set apart for a purpose or duty; — with to or for; to designate an officer for or to the command of a post or station.

Meaning

• Designated; appointed; chosen.

• Used after a role title to indicate that the person has been selected but has yet to take up the role.